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参数资料
| 型号： | TC3403VQRRT |
| 元件分类： | ADC |
| 英文描述： | 4-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO16 |
| 封装： | QSOP-16 |
| 文件页数： | 8/13页 |
| 文件大小： | 90K |
| 代理商： | TC3403VQRRT |
4
TC3403
TC3403-1 3/30/00
+1.8V, Low Power, Quad-Input, 16-Bit
∑ –
A/D Converter with a Power Fault Monitor
and Microprocessor Reset Circuit
2001 Microchip Technology Inc.
DS21412A
PIN DESCRIPTION
TC3403
Pin No.
Name
Description
1,2,3,4
INn+
Analog Input. This is the positive terminal of a true differential input with the negative input tied
internally to GND.
(See Electrical Characteristics.)
5
PFI
Analog Input. This is the positive input to an internal comparator used as a threshold detector.
The negative input is tied to an internal reference.
6VTH
Analog Input. This is the positive input to the internal comparator used to monitor the voltage
supply. The negative input is tied to an internal reference. When VTH falls below the internal
reference, the reset generator drives RESET low as specified in the Electrical Characteristics
section.
7
REFIN
Analog Input. The converter’s reference voltage is the differential between this pin and ground
times two. It may be connected to REFOUT as shown on page 1 or scaled using a resistor
divider. Any user supplied reference voltage or the power supply rail may be used in place of REFOUT.
8
GND
Ground Terminal.
9
REFOUT
Analog Output. The internal reference connects to this pin. It may be scaled externally, if
desired, and tied to the REFIN input to provide the converter’s reference voltage. Care must be
taken in connecting external circuitry to this pin. (See Electrical Characteristics.)
10
SDAT
Digital Output (push-pull). This is the MicroPort serial data output. SDAT is driven low while
the TC3403 is converting data, effectively providing a “busy” signal. After the conversion is
complete, every high-to-low transition on the SCLK pin puts a bit from the resulting data word
on the SDAT pin (from MSB to LSB).
11
PFO
Digital Output (open drain). This is the output of the internal threshold detector. When PFI is less
than the internal reference, PFO is driven low.
12
RESET
Digital Output (open drain). This is the output of the VDD monitor reset generator. RESET is
driven low when a power-on reset or brown-out condition is detected. (See AC Electrical
Characteristics.)
13
A1
Digital Input. Controls analog multiplexer in conjunction with A0 to select one of the four Input
channels. This address is latched at the falling edge of the SCLK, which starts an A/D conversion.
A1,A0 = 00 = Input 1; 01 = Input 2; 10 = Input 3; 11 = Input 4.
14
A0
Digital Input. Controls analog multiplexer in conjunction with A1 to select one of four Input
channels. This address is latched at the falling edge of the SCLK, which starts an A/D conversion.
A1,A0 = 00 = Input 1; 01 = Input 2; 10 = Input 3; 11 = Input 4.
15
SCLK
Digital Input. This is the MicroPort serial clock input. After the conversion starts, each addi
tional falling edge (up to six) detected on SCLK for t4 seconds reduces the A/D resolution by
one bit. When the conversion is complete, the data word can be shifted out on the SDAT
pin by clocking the SCLK pin.
16
VDD
Power Supply Input. (See Electrical Characteristics .)
相关PDF资料 |
PDF描述 |
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| TC3403VQRTR | 4-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO16 |
| TC3403VQR | 4-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO16 |
| TC3403VPE | 4-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDIP16 |
| TC3404VQRRT | 4-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO16 |
| TC3404VQRTR | 4-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO16 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TC3403VQRTR | 功能描述:模数转换器 - ADC 1.8V Lw Pwr Quad RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| TC3404 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:+1.8V Low Power, Quad Input, 16-Bit Sigma-Delta A/D Converter with a Power Fault Monitor |
| TC3404_05 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:+1.8V Low Power, Quad Input, 16-Bit Sigma-Delta A/D Converter with a Power Fault Monitor |
| TC3404VPE | 功能描述:模数转换器 - ADC 1.8V Lw Pwr Quad RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| TC3404VQR | 功能描述:模数转换器 - ADC 1.8V Lw Pwr Quad RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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